DKIMPROXY.IN(1) User Contributed Perl Documentation DKIMPROXY.IN(1) NAME dkimproxy.in - SMTP proxy for verifying DKIM signatures SYNOPSIS dkimproxy.in [options] LISTENADDR:PORT RELAYADDR:PORT smtp options: --conf_file=FILENAME --listen=LISTENADDR:PORT --relay=RELAYADDR:PORT --reject-error verification options: --reject-fail --hostname=HOSTNAME daemon options: --daemonize --user=USER --group=GROUP --pidfile=PIDFILE dkimproxy.in --help to see a full description of the various options OPTIONS --daemonize If specified, the server will run in the background. --group=GROUP If specified, the daemonized process will setgid() to the specified GROUP. --hostname=HOSTNAME Overrides the hostname used in the Authentication-Results header. This header gets added to every verified message. Use this option if the hostname that appears is not fully qualified or you want to use an al- ternate name. --pidfile=PIDFILE Creates a PID file (a file containing the PID of the process) for the daemonized process. This makes it possible to check the status of the process, and to cleanly shut it down. --reject-error This option specifies what to do if an error occurs during verification of a message. If this option is specified, the message will be rejected with an SMTP error code. This will result in the MTA sending the mes- sage to try again later, or bounce it back to the sender (depending on the exact error code used). If this option is not specified, the mes- sage will be passed through with an error listed in the Authentication- Results header instead of the verification results. The most common cause of an error when verifying a message is a DNS er- ror when trying to retrieve a public key or sender policy. --reject-fail This option specifies what to do if verification fails and the sender signing policy says to reject the message. If this option is specified, the message will be rejected with an SMTP error code. This will result in the sending MTA to bounce the message back to the sender. If this option is not specified, the message will pass through as normal. --user=USER If specified, the daemonized process will setuid() to USER after com- pleting any necessary privileged operations, but before accepting con- nections. DESCRIPTION dkimproxy.in listens on the IP address and TCP port specified by its first argument (the "listen" port), and sends the traffic it receives onto the second argument (the "relay" port), with messages getting verified and hav- ing an "Authentication-Results" header added to them. EXAMPLE For example, if dkimproxy.in is started with: dkimproxy.in --reject-fail --reject-error 127.0.0.1:10025 127.0.0.1:10026 the proxy will listen on port 10025 and send the verified messages to some other SMTP service on port 10026. CONFIGURATION FILE Parameters can be stored in a separate file instead of specifying them all on the command-line. Use the conf_file option to specify the path to the configuration file, e.g. dkimproxy.in --conf_file=/etc/dkimproxy_in.conf The format of the configuration file is one option per line: name of the option, space, then the value of the option. E.g. # this is an example config file listen 127.0.0.1:10025 relay 127.0.0.1:10026 hostname myhost.example.com reject_fail is equivalent to dkimproxy.out --hostname=myhost.example.com --reject-fail \ 127.0.0.1:10025 127.0.0.1:10026 AUTHOR Jason Long perl v5.10.0 2010-10-25 DKIMPROXY.IN(1)
NAME | SYNOPSIS | OPTIONS | DESCRIPTION | EXAMPLE | CONFIGURATION FILE | AUTHOR
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